nanog mailing list archives
Re: BGP Multihoming 2 providers full or partial?
From: William Herrin <bill () herrin us>
Date: Sun, 31 May 2015 10:23:58 -0400
On Fri, May 29, 2015 at 4:36 AM, Maqbool Hashim <maqbool () madbull info> wrote:
We are an enterprise that are eBGP multihoming to two ISPs. We wish to load balance in inbound and outbound traffic thereby using our capacity as efficiently as possible. My current feeling is that it would be crazy for us to take a full Internet routing table from either ISP. I have read this document from NANOG presentations:
Hello, Without a full table you are not protected from partitions. Partitions are when a particular destination is reachable via one of your ISPs but not via the other. Without receiving the route, you have no idea which ISP can reach it. Partitions happen fairly often but rarely last long (on the order of minutes). The worst cases tend to be when two backbones get into a peering dispute. Those have been known to last a week or more. See: Cogent v. everybody else. Think of it this way: a partial table is like an unsigned SSL certificate. Better than static routes but not fully protected. Regards, Bill Herrin -- William Herrin ................ herrin () dirtside com bill () herrin us Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
Current thread:
- BGP Multihoming 2 providers full or partial? Maqbool Hashim (May 30)
- RE: BGP Multihoming 2 providers full or partial? Joseph Jackson (May 31)
- RE: BGP Multihoming 2 providers full or partial? Maqbool Hashim (May 31)
- Re: BGP Multihoming 2 providers full or partial? Faisal Imtiaz (May 31)
- Re: BGP Multihoming 2 providers full or partial? Mark Tinka (May 31)
- RE: BGP Multihoming 2 providers full or partial? Maqbool Hashim (May 31)
- Re: BGP Multihoming 2 providers full or partial? Faisal Imtiaz (May 31)
- RE: BGP Multihoming 2 providers full or partial? Maqbool Hashim (May 31)
- Re: BGP Multihoming 2 providers full or partial? Faisal Imtiaz (May 31)
- RE: BGP Multihoming 2 providers full or partial? Maqbool Hashim (May 31)
- RE: BGP Multihoming 2 providers full or partial? Maqbool Hashim (May 31)
- RE: BGP Multihoming 2 providers full or partial? Joseph Jackson (May 31)
- Re: BGP Multihoming 2 providers full or partial? William Herrin (May 31)
- Re: BGP Multihoming 2 providers full or partial? Michael (May 31)
- Re: BGP Multihoming 2 providers full or partial? Baldur Norddahl (May 31)
- Re: BGP Multihoming 2 providers full or partial? Jason Canady (May 31)